|Manga Debut||OPM Special Chapter 4|
Y-City (Y市, Y Shi) is a large city within the world of OnePunch-Man. The city contains Child Emperor's Lab.
Child Emperor's LaboratoryEdit
A laboratory located in Y-City owned by Child Emperor. In this location, Child Emperor would build and experiment with various gadgets.
Human Monster SagaEdit
Monster Raid ArcEdit
During the Monster Raid, Eyesight attacks Y-City. Pig God defeats her by devouring her.
Fall of the Hero Association ArcEdit
Forest Tribe attempt to invade the city but are stopped by Genos.
Appearances in Other Media Edit
|Cities||A-City • B-City • C-City • D-City • F-City • G-City • H-City • I-City • J-City • K-City • N-City• M-City • Q-City • R-City• S-City • V-City • W-City • Y-City • Z-City|